Cylinder 4 is the rear-most cylinder in the inline-4 engine found in many 2014 Jeep Compass models, located closest to the firewall.
In the 2014 Compass, the common engine is the 2.4-liter Tigershark inline-4. Cylinder numbering runs from the front of the engine (cylinder 1) toward the rear (cylinder 4) when viewed from the front of the vehicle, so cylinder 4 sits at the back of the engine block. This orientation matters for maintenance tasks such as spark plug or coil replacement and compression testing. If your specific build uses a different engine variant, consult the service manual for the exact cylinder order and the location of coils/plugs.
Understanding cylinder numbering on the 2.4L Tigershark engine
The Tigershark inline-4 uses a single row of four cylinders. When you stand in front of the vehicle and look at the engine, count from the front toward the firewall; the numbers progress 1, 2, 3, and 4. Cylinder 4 is therefore the rearmost cylinder in the row.
How to physically locate cylinder 4 on the engine
To pinpoint cylinder 4 on the engine, follow these practical steps. The paragraph that precedes the list explains what you’re looking for. The paragraph after the list summarizes the result.
- With the hood open, identify the front of the engine by locating the crank pulley and the accessory belts near the radiator.
- Trace along the top of the engine along the row of cylinder positions toward the firewall.
- Count from the front end toward the back; the fourth position corresponds to cylinder 4, the rear-most cylinder closest to the firewall.
In short, cylinder 4 sits at the back of the engine block, nearest the firewall, in the 2.4L inline-4 configuration commonly used in the 2014 Compass.
Maintenance considerations for cylinder 4
Because the 2.4L Tigershark uses coil-on-plug ignition, cylinder 4 has its own ignition coil mounted on the valve cover near the rear of the engine. When performing work such as spark plug changes or coil swaps, disconnect the battery and follow torque specifications from the factory service manual. Always ensure you’re working on the correct cylinder to avoid misfires and ensure optimal engine performance.
Summary
For a 2014 Jeep Compass equipped with the common 2.4L Tigershark inline-4 engine, cylinder 4 is the rearmost cylinder in the four-cylinder row, located closest to the firewall. Cylinder numbering runs front (cylinder 1) to rear (cylinder 4), so identifying the rear-most position is the reliable way to locate cylinder 4. When in doubt, consult the vehicle’s service manual for the exact cylinder order and coil/plug arrangement specific to your model.